Automatic gate



2 Sheets Sheet 1.

(No Model.)

L. M. HAWES. AUTOMATIC GATE.'

Patented Jan. 11, 1898.

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' L. HAWES- AUTOMATIC GATE.

No. 597,237. Patented Jan. 1-1, 1898.

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UNiTsD STATES i Partnr tries.

LEVI M. HAI/VES, OF SACRAMENTO, CALIFORNIA.

AUTOMATIC GATE.

SPECIFICATION forming part of Letters Patent No. 597,237, dated January 1 1, 1898.

Application filed August 17, 1897.

To c/.ZZ whom, t 11m/y oon/cern.-

Be it known that l, LEVI M. Hawes, actizen of the United States, residing at Sacramento, county of Sacramento, State of California, have invented an Improvementin Automatic Gates; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to improvements in that class of gates which are adapted to be opened and closed by the approaching and receding vehicle.

It consists in details of construction which will be more fully explained by reference to the accompanying drawings, in Which- Figure l is a plan view oi' my gate and its connections. Fig. 2 is an end View of the plate Q and its adjuncts. Fig. 3 is an elevation of a portion of the gate. Figs. 4, 5, 6, 7, and S are details to be hereinafter referred to. Fig. 9 is a top view of the lower hinge, showing its working.

This gate may be made either double or single. If made single, a single fixed post A carries the attachments from which the inner gate-stile B is' hung, so that it swings about the connections to open or close, and the outer end closes and latches against the red post.

In the present case I have shown my device as applied to a double gate, in which there will be two of the fixed posts A upon opposite sides of the roadway and two gates having the swinging or hinge-carrying stiles B connected with the posts A, while the meeting ends of the gates are adapted to latch together by means of stiles C, which meet centrally, one of said stiles having projecting latches D ixed at top and bottom, respectively, and the other carrying the notched latch-plates E, with which the latches D engage. The peculiarity in these attachments, which are shown in detail in Figs. Ll and 5, is the formation of the parts D and E with plates from which they project and which are attached to the respective posts by bolts, while each of the plates E has an inwardly-projecting plate, as at c, which is mortised into the wood of the stile, so as to form a strong brace and prevent the plates from being loosened or broken from the gate by the constant concussion caused by their latching. when closed Serial No. 648,486. (No model.)

together. The plate from which the catch D projects is vertically slotted, so that it may f gether, and may be covered With a wire net- Work or screen, which will eiifectually prevent the passage of small animals.

Upon the post A, at the upper end, is fixed a bracket G, projecting from. the face of the post adjacent to the inner gate-stile B, and H is a rod bent so that the upper end passes vertically through a hole in the outer end of the bracket Gr, while the lower portion is bent inwardly and has an eye at the lower end, which is iirmly bolted and secured to the post A, as shown.

Theprotruding bracket G: forms a strong brace for the pin II and holds the latter at a sufficient distance away from the post A without danger of its becoming loose by the wrench or strain of the swinging gate.

Upon the stile B is fixed a socket-piece I, which has an interiorly-projecting plate t, mortised into the post A, where it is secured by bolts passing through it7 so as to prevent it from being loosened or removed.

At the bottom of the post A is a lixed permanent plate or support J, and upon this is pivoted a dat segmental plate K, which lies horizontally upon the support J and has an upwardly-projecting peripheral rim Ii. (See Fig. 7.) Upon the opposite side and in a smaller arc of a circle surrounding the pivotpin It is a segmental toothed portion 7a2. The pivot-pin kpasses down through the supporting-plate J and has fixed to its lower end a bar Z, which projects each way from the pin, for a purpose to be hereinafter described.

The bottom of the stile B has fitted to ita concaved toothed segment M, the teeth of which are adapted to engage with the teeth k2 of the segment K upon the post. This segment M has an upwardly-projecting plate m, (see Fig. 6,) entendin g along up the inner face of the post B, into which it is sunk, a

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horizontally-projecting plate let into the bottom of the stile, and a diagonally-connecting web mortised into the stile, the whole being bolted firmly in place, so as to secure the parts to prevent their becoming loosened from the stile, this being an important'feature of all these attachments, because the alternate wetting and drying of the wood and the movements of the gates soon loosen such attachments and destroy the usefulness of the gate.

The object of the toothed segments k2 and M is to move the bottom of the gate outwardly and cause it to swing, the top remaining essentially in place upon the hinge-pin II, so that the first movement caused by the tu-rning of the segment K engages one end with the corresponding end of the segment M, thus pushing the bottom of the gate outwardly from the post A and lifting the end where the latches D and E engage until they are clear of each other, or in case of a single gate the latch D will be clear of the notched catch E of the fixed post. The gate is thus lifted and the bottom support or hinge is shifted by reason of one of the edges M2 of the segment M resting in the corresponding socket k3 of the segment K, and as this socket is at one side of the pivot-pin 7c it will be seen that the gate thus having its hinge-pins thrown out of line its tendency will be to swing in the direction opposite to the point of temporary support.

The manner in which this gate is moved is by means of wheel-plates N, located in the roadway. These plates are supported upon curved staples O, which pass through and allow the plates to swing easily from side to side. Each plate is retained in its vertical position by springs, as shown at P, which press against it, but will yield to allow it to lie down flat in either direction. Fixed to one side of this normally vertical plate N is a projecting plate Q, having upon it a pin Q for the attachment of a cord or chain, and it also has a pressure-pin near the outer end, as shown at Q2, under which the cord or chain R passes, so that when the plate N is tilted in either direction the action of the plate Q is that of a lever pulling upon the cord R. By means of a fixed pulley R', over which the cord passes, the movement of the cord is in creased when the yplate Q is turned, as above described.

When the plate N is tilted in one direction, the projecting lever-plate Q will be pressed downward, and I have shown an excavation or chamber made beneath it to allow this plate to drop into the excavation when the plate N is forced into a flat position by the wheel of a carriage passing over it from the right, as shown in the drawings; but when the wheel passes over it from the opposite direction, or from the left, it will be seen that the plateQ will be thrown upward when the plate N lies iiat and will pull the cord in the same manner. The cord R from theplate Q passes around the vertical liange K of the segment K, and there being one of the plates N placed in the roadway or approach to the gate on either side thereof it will be seen that when the carriage passes over the plate from either side it will act to pull the cord R, which, passing around the segmental flange K', rotates the segment 'K about its pivot-pin Zo. This presses the indentation or socket k3 against the outer end M2 of the segment M upon the gatestile B, which, as before described, forces the bottom of the gate-stile outward, thus lifting the outer end and disengagingthe latch. At the same time the support for the gate-stile is temporarily transferred to the point M2, which is in contact with the socket k3, and the gate being thus tilted or upon an axial line which is not perpendicular will have a tendency to swing about this temporary axial line, thus opening itself and swinging back against the stop-post, of which there is .one upon the side of the roadway in line with the main post A, as shown at A2. A catch a is xed to each of these posts and adapted to engage with the latches D upon the gate-stile C, so as to retain the gatein its open position until a carriage passes over the opposite plate N, when the segment K will be moved in the opposite direction, which will again disengage and tilt the gate, so that it will close.

In order to operate the two gates simultaneously, I have shown the transverse bars Z passing through the bottom of the pivot-pin Za of the segment K and turnable with the segment and pin. These bars or rods Z have their ends connected in a channel beneath the gates, so that the cords cross each other centrally beneath the gates, the cord from one end of one of the arms Z connecting with the opposite end of the other arm Z, as shown in plan view. By this connection both gates are operated from the single turning plate N, because when this plate is operated and turns at segment K the pin or rod Zof the pivot-pin will be turned with it, and, pulling through its connecting wire'or cord upon the end of the opposite pin Z, the segment K of the other gate will be simultaneously turned, so that both gates will be unlatched and caused to swing open at the same instant.

The operating parts of the gate being at the bottom -instead o f the top are more permanent by being close to or. below the surface of the ground and are not liable to be moved out of place by the springing or twisting of the upper ends of the posts.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- Y 1. In a gate, a fixed post to which the gate is hinged, upper hinge-pins fastened at the bottom bent diagonally and with supporting bracket-braces, corresponding eyes let into and fixed to the top of the inner ends of the gate, concaved segments xed to the lower ends of the inner gate-Stiles and corresponding segments pivoted to the bottom of the fixed IOO IIO

Aposts having sockets upon each side of their pivot-point adapted to engage the ends of the gate-stile segments whereby the gate is retained in a closed position when the turnable segments are in their normal position and is tilted so as to swing when said segments are turned to an angle.

2. In a gate, a fixed post having an upper stationary hingeconnection, a segment turnable about a pivot-pin at the base of said post having a reversely-ourved toothed segment of smaller diameter, a concaved toothed segment fixed to the bottom of the gate-stile adapted to engage with the turnable segment, a flange projecting upwardly from the turnable segment, wires or cords passing around said flange from opposite directions connecting with wheel-plates xed in the roadway whereby the depression of said Wheel-plates acts to turn the segments, unlatch the gate and throw the axis ont of a vertical line.

3. In a gate, a fixed post having a hinge connection at the top upon which the inner gatestile is tnrnable, a segment pivoted at the bottom having a vertical flange around its periphery and contact-points upon each side of the pivot-pin within the ends of the segment, a concaved segment xed to the bottom of the inner gatestile, the ends of which contact with the points upon the movable segmentwhen the latter is in its normal position, one of said ends being forced outwardly when the segment is turned and at the same time forming a temporary inclined axial line with the upper hinge about which the gate is turnable.

fi. In a gate, axed post having a hinge at the top about which the inner gate-stile is turnable, a turnable segment pivoted at the bottom, engaging a corresponding concaved segment fixed to the bottom of the gate-stile and having an upwardly-projecting segmental iiange, wires or ropes having their ends iXed at the ends of the segmental flange and passing in opposite directions around said tia-nge, spring-pressed wheel-plates held vertically in the roadway, each having a plate projecting at right angles and turnable therewith and having an attachment for the opposite end of the wire or rope which passes around the segment whereby the depression of the plate acts to turn the segment about its vertical pivot and change the axial hinge-line of the gate.

5. In a gate, fixed posts A upon opposite sides of the roadway, double gates meeting in the center having engaging latches, the stiles of saidl gates adjacent to the fixed posts having permanent hinges at the upper ends, and concave segments at the lower ends, turnable segments fixed at the base of each of the posts A and engaging the ends of the gate-stile segments, pivot-pins fixed to said turnable segments, passing through supports Within which they are turnable, transversearms extending through the lower ends of said pivotpins, those upon opposite sides being connected together by 'wires or ropes crossing each other as shown, spring-pressed wheelplates standing normally in a vertical position in the roadway having projecting plates,

` wires or ropes extending from said projecting plates to the turnable segments at the bases of the xed posts whereby the depression of the wheel-plates turns the segments, unlatches the gates and acts to operate both gates simultaneously.

In witness whereof I have hereunto set my hand.

LEVI M. HAWES. Witnesses:

S. H. NoURsE, Jnssin C. BRODIE. 

